Hewlett-Packard unveiled a new collection of Sleekbooks, or slim laptops, this week, expanding on the trend of ultra-portable, powerful machines.

Though the idea behind what are referred to as “ultrabooks” is to chase after Apple’s MacBook Air, don’t you dare suggest that Hewlett-Packard could be copying the industry leader in Cupertino, Calif.

According to Engadget, HP design chief Stacy Wolff said that any similarities between the new laptops and Apple’s Air do not simply copy Apple.

“Apple may like to think that they own silver, but they don’t,” Wolff said.

He added in a later interview with the Web site that although various tech products often have similar designs, those are largely a function of the technology.

“[Sometimes] the wedge is the right solution, silver is the right solution,” he said. “I see a lot of differences as much as the similarities.”

The new Sleekbooks — which run AMD chips instead of the Intel chips in ultrabooks — beat out Apple by at least one measure: price. An HP ultrabook starts at $600; Apple’s start at $999.

The company on Wednesday introduced 14-inch and 15.6-inch models of the HP ENVY Sleekbooks, as well as ENVY Ultrabooks in the same sizes. HP also unveiled a new Ultrabook, the HP ENVY Spectre XT, which has a 13.3-inch screen and promises up to eight hours of battery life.